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wl12xx: track freed packets in FW by AC

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Track the number of freed packets in each AC when receiving an interrupt
from the FW. This paves the way for tracking allocated packets per AC.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Arik Nemtsov 2011-08-14 13:17:32 +03:00 committed by Luciano Coelho
parent 010d3d30a2
commit bf54e30167
3 changed files with 23 additions and 3 deletions
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16
drivers/net/wireless/wl12xx/main.c
View file

@ -814,6 +814,7 @@ static void wl12xx_fw_status(struct wl1271 *wl,
struct timespec ts;
u32 old_tx_blk_count = wl->tx_blocks_available;
int avail, freed_blocks;
int i;
wl1271_raw_read(wl, FW_STATUS_ADDR, status, sizeof(*status), false);
@ -824,6 +825,15 @@ static void wl12xx_fw_status(struct wl1271 *wl,
status->drv_rx_counter,
status->tx_results_counter);
for (i = 0; i < NUM_TX_QUEUES; i++) {
/* prevent wrap-around in freed-packets counter */
wl->tx_allocated_pkts -=
(status->tx_released_pkts[i] -
wl->tx_pkts_freed[i]) & 0xff;
wl->tx_pkts_freed[i] = status->tx_released_pkts[i];
}
freed_blocks = le32_to_cpu(status->total_released_blks) -
wl->tx_blocks_freed;
wl->tx_blocks_freed = le32_to_cpu(status->total_released_blks);
@ -1934,7 +1944,7 @@ static int wl1271_op_add_interface(struct ieee80211_hw *hw,
static void __wl1271_op_remove_interface(struct wl1271 *wl,
bool reset_tx_queues)
{
int ret;
int ret, i;
wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
@ -2050,6 +2060,10 @@ static void __wl1271_op_remove_interface(struct wl1271 *wl,
wl->tx_blocks_freed = 0;
wl->tx_allocated_pkts = 0;
for (i = 0; i < NUM_TX_QUEUES; i++)
wl->tx_pkts_freed[i] = 0;
wl1271_debugfs_reset(wl);
kfree(wl->fw_status);

2
drivers/net/wireless/wl12xx/tx.c
View file

@ -242,6 +242,8 @@ static int wl1271_tx_allocate(struct wl1271 *wl, struct sk_buff *skb, u32 extra,
wl->tx_blocks_available -= total_blocks;
wl->tx_allocated_blocks += total_blocks;
wl->tx_allocated_pkts++;
if (wl->bss_type == BSS_TYPE_AP_BSS)
wl->links[hlid].allocated_blks += total_blocks;

8
drivers/net/wireless/wl12xx/wl12xx.h
View file

@ -268,8 +268,8 @@ struct wl12xx_fw_status {
/* Size (in Memory Blocks) of TX pool */
__le32 tx_total;
/* Cumulative counter of released mem-blocks per AC */
u8 tx_released_blks[NUM_TX_QUEUES];
/* Cumulative counter of released packets per AC */
u8 tx_released_pkts[NUM_TX_QUEUES];
/* Cumulative counter of freed MBs per HLID */
u8 tx_lnk_free_blks[WL12XX_MAX_LINKS];
@ -422,6 +422,10 @@ struct wl1271 {
u32 tx_allocated_blocks;
u32 tx_results_count;
/* Accounting for allocated / available Tx packets in HW */
u32 tx_pkts_freed[NUM_TX_QUEUES];
u32 tx_allocated_pkts;
/* Transmitted TX packets counter for chipset interface */
u32 tx_packets_count;